Re: RFS: pdsh -- An efficient rsh-like utility, for using hosts in paralell

[Junichi Uekawa <dancer@netfort.gr.jp>]

> Pdsh is a high-performance, parallel remote shell utility. It has
> built-in, thread-safe clients for Berkeley and Kerberos V4 rsh, and can
> call SSH externally (though with reduced performance). Pdsh uses a
> "sliding window" parallel algorithm to conserve socket resources on the
> initiating node and to allow progress to continue while timeouts occur
> on some connections.

I would like an improved description than this; ideally one 
should be able to compare the description of 'dsh' and 'pdsh' and 
see how they are different.

I'll try and update dsh description.


The major difference between the two implementation seems to be 
(from your description):
o pdsh includes rsh itself, while dsh does not
o pdsh tries to keep fixed amount of connections at the same time
  for parallel connection, dsh does not care; dsh uses a 
  fan-out mechanism for large-scale job submission.


regards,
	junichi.